United States president Barack Obama and Pope Francis have joined in the condemnation of the Florida mass shooting in Florida on Sunday, suspected to be an act perpetrated by the terror group, ISIS.

Pope Francis has expressed horror and condemnation over the mass shooting in a nightclub in Orlando, Florida, on Sunday
in which 50 people were killed and dozens more wounded, according to Vatican spokesman Federico Lombardi.

In a statement, Lombardi said the Pope was shaken and saddened by the “homicidal folly and senseless hatred” of the attack.

“We all hope that ways may be found, as soon as possible, to effectively identify and contrast the causes of such terrible and absurd violence,” the statement said.

A gunman armed with an assault rifle carried out the attack on Sunday at a packed gay nightclub in what is the worst mass shooting in U.S. history.

Obama also described the shooting as the worst in U.S. history and described it as “an act of terror” and “an act of hate,” saying the massacre of 50 people at a packed gay nightclub in Orlando, Florida was an attack on all Americans.

“Today as Americans we grieve the brutal murder, a horrific massacre of dozens of innocent people,” he said in a statement at the White House.

“Although it is still early in the investigation, we know enough to say that this was an act of terror and an act of hate,” Obama said.

“We will not give in to fear or turn against each other. Instead, we will stand united as Americans to protect our people and defend our nation, and to take action against those who threaten us.”

He ordered the flag at the White House to be flown at half staff to honor the victims.

The shooter, who was identified as Florida resident Omar S. Mateen was killed by police at the nightclub. A top U.S. congressman said Mateen may have pledged allegiance to the Islamic State militant group, but U.S. officials cautioned
they had no direct evidence of a connection.

Fifty-three people were wounded in the rampage, which surpassed the 32 people killed in the 2007 massacre at Virginia Tech university.